March Weather in Lewistown, United States

Last updated: June 24, 2025

In March, the average temperature in Lewistown, United States hovers around 7°C (44°F), providing a chilly yet refreshing atmosphere. Temperatures can dip as low as -17°C (2°F) or soar up to 25°C (77°F), showcasing a diverse range of weather conditions. Expect about 115 mm (4.5 in) of precipitation over 11 days, contributing to an average humidity of 80%, which lends a certain dampness to the air. Prepare for a month where unpredictability meets charm!

March Temperature in Lewistown

In March in Lewistown, the average temperature is 7°C (44°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -17°C (2°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

March Weather in Lewistown: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Lewistown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lewistown, March typically has an average temperature of 7°C (44°F), with highs reaching up to 25°C (77°F) and lows dropping to around -17°C (2°F).

Data source: Temperature data for Lewistown generated using information from the Copernicus Climate Change Service.

March Precipitation in Lewistown

In Lewistown in March, the total precipitation amount is 115 mm (4.5 in) spread over 11 days.

March Precipitation Trends in Lewistown

The chart displays monthly precipitation patterns in Lewistown, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Lewistown, March typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Lewistown

In Lewistown in March humidity is 80%. With an average temperature of 7°C (44°F), this humidity feels like a chilly dampness that clings to your skin, making it essential to dress in layers and be prepared for a slightly uncomfortable but invigorating travel experience.

March Average Humidity in Lewistown

This chart illustrates the average monthly humidity levels in Lewistown, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Lewistown is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Lewistown

In Lewistown in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Lewistown.

Maximum UV Index Levels in Lewistown for March

The chart shows the monthly maximum UV Index (UVI) for Lewistown in March, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In March, the maximum UV index in Lewistown typically reaches 7, which falls under the high exposure category.

Data source: Lewistown March UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How March Weather in Lewistown Compares to Other Months

Weather in Lewistown varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Lewistown, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Lewistown, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	59 mm (2.3 inches)	82%	moderate
February Weather	-1°C (31°F)	57 mm (2.2 inches)	80%	moderate
March Weather	7°C (44°F)	115 mm (4.5 inches)	80%	high
April Weather	11°C (53°F)	100 mm (4.0 inches)	80%	very high
May Weather	18°C (66°F)	177 mm (7.0 inches)	82%	very high
June Weather	24°C (76°F)	105 mm (4.1 inches)	83%	extreme
July Weather	26°C (79°F)	91 mm (3.6 inches)	81%	very high
August Weather	24°C (76°F)	93 mm (3.7 inches)	80%	very high
September Weather	21°C (71°F)	81 mm (3.2 inches)	76%	very high
October Weather	14°C (57°F)	114 mm (4.5 inches)	76%	high
November Weather	5°C (42°F)	52 mm (2.1 inches)	85%	moderate
December Weather	2°C (36°F)	41 mm (1.6 inches)	86%	moderate